Laxative is a commonly used antidiarrheal drug for the treatment of diarrhea caused by acute gastroenteritis due to bacterial infections, such as dysentery and E. coli, and has a certain anti-inflammatory and analgesic effect. However, it is recommended not to take it orally, as some people may suffer from allergic reactions or liver and kidney damage due to the composition of the drug. In addition, it is recommended to clarify the cause of diarrhea and treat it in order to avoid disorders of water, electrolytes and acid-base balance, which can lead to infectious shock in severe cases. Therefore, it is recommended to perform routine stool and occult blood, liver and kidney function and electrolyte examination, and if necessary, improve the colonoscopy test. In daily life, pay attention to diet and daily routine, eat less spicy and stimulating food, drink less alcohol and pay attention to hygiene.